was yasser arafat poisoned? palestinian authorities think so, so they opened up his grave and took samples. it started before dawn under the cover of huge sheets. a few hours later, his grave was closed back up. there has been persistent speculation in the arab world for the last eight years that israel poisoned the 75-year-old leader. israel denies that claim. >>> medicine washed down with grapefruit juice can kill you. drugs to watch out for, growing from 17 medicines that react badly to grapefruit. now it's up to 43. on it, the drug known by lipitor, i heard this from friends. there's a chemical in the grapefruit that messes up how your body breaks down these drugs by preventing the breakdown, the chemical can cause a drug overdose. >>> two men sentenced for their roles in a gun smuggling ring tied to the government's botched fast and furious operation. one will spend 3 1/2 years behind bars and another, nine years. those illegally purchased weapons and smuggled them into mexico to give to members of drug car